Want to find your lens? Five questions, no jargon — they tell you which of four reads fits how you already think.
Expensive and softening.
Trading above fair value while the fundamentals weaken — little to like right now.
Price against fair value
Free cash flow — 10-year history ($B)
What the math is really telling you. Watch whether cash flow is compounding — that, more than any single year, is what a value read hangs on.
The read — lights & verdict
- WarningOvervaluedFair value ~$201 vs $478 — trading 58% above what the math supports.
- WarningPrice assumes a big accelerationYou'd need ~14%/yr free-cash-flow growth to justify today's price; it has done -30.1%/yr lately.
- WarningRevenue shrinkingDown 4.4% last year — cheap may mean broken.
- CautionCash flow flat-to-downFree cash flow ~-30.1%/yr — big, but not compounding. The crux for a value buyer.
- WarningHeavy debt loadNet debt of $29B — roughly 6× annual free cash flow. This changes the risk picture.
How this was built. Every figure is computed from Marathon Petroleum Corporation's SEC filings — no estimates, no AI. Two-stage DCF: 9% discount rate, 5% free-cash-flow growth for 10 years, 2.5% terminal. Free cash flow is operating cash flow less capital spending. Net cash is cash and marketable securities less borrowings, commercial paper and finance leases; operating leases are disclosed but never counted as debt. We subtract net debt from the value of the business — for Marathon Petroleum that is about $29B, or $95 per share. Fundamentals are from the FY25 annual report and change only when a new one is filed. Price of $478.07 taken 2026-10-17 (Google Finance, manual entry, 2026-10-17) — it is not live and does not move during the day.
TickerMath is an educational tool, not investment advice — it computes one model from SEC filings and can be wrong. How we compute this →